PAUP

Try writing the author. He has developed a beautiful piece of software and
distributes it at truly MODEST cost. Don't have his address handy, but you
could look it up. He is at the Natural History Survey in Champaign, IL
brett at borcim.wustl.edu
ps try snail mail: DLS, IL NATL HIS SUR
607 peabody dr
champaign, il 61820